• 제목/요약/키워드: Proteome analysis

검색결과 320건 처리시간 0.068초

Proteomic Identification of Differentially Expressed Proteins in Arabidopsis Mutant ntm1-D with Disturbed Cell Division

  • Lee, Kyung Hyeon;Kim, Youn-Sung;Park, Chung-Mo;Kim, Hie-Joon
    • Molecules and Cells
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    • 제25권1호
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    • pp.70-77
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    • 2008
  • Proteome analysis was performed to identify proteins differentially expressed in an Arabidopsis mutant, ntm1-D. In this mutant the NAC transcription factor NTM1 is constitutively expressed and the resultant phenotypic changes include dwarfism, serrated leaves, and altered floral structures, probably due to reduced cell division. Marked elevation of proteins mediating environmental stress responses, including annexin, vegetative storage proteins, beta-glucosidase homolog 1, and glutathione transferases was observed. Overexpression of annexin was confirmed by RT-PCR and Western blotting. These observations suggest that the reduced growth observed in the ntm1-D mutant is caused by enhancement of its stress responses, possibly resulting in a cost in fitness.

Proteome analysis of Streptococcus iniae ATCC 29178

  • Lee, Hyung-Jun;Shin, Gee-Wok;Kim, Nam-Su;Kang, Sung-Hun;Park, Jin-Ju;Oh, Myung-Joo;Kim, Yong-Hwan;Jung, Tae-Sung
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2002년도 춘계 수산관련학회 공둥학술발표회
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    • pp.515-516
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    • 2002
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Effect of Soy Protein Diet on Mucosa Layer of Murine Small Intestine

  • Lee, Aeri;Lim, Jinkyu
    • Current Research on Agriculture and Life Sciences
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    • 제32권1호
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    • pp.34-42
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    • 2014
  • Soy and fermented soy are popular and recognized as a health food among Koreans. Since soy proteins are known to be protease resistant, even to pepsin and pancreatin, it is hypothesized that soy proteins may interact with the intestinal tract and trigger certain physiological reactions. To test this hypothesis, mice were fed diets supplemented with soy, Chunkukjang, or casein. The differentially expressed proteins were analyzed using 2-D gels and identified by peptide mass fingerprinting using mass spectrometry. The majority of the differentially expressed proteins could be functionally grouped into metabolic enzymes and calcium-binding proteins. The differential protein expression by the soy-fed groups was also verified based on a representative protein, tropomyosin, using a Western blotting analysis. In addition, the soy-fed groups exhibited a taller villi structure. Therefore, this study suggests that soy proteins can be an effective nutrient and physiological stimulant for the intestines.

Expression Changes of Chironomus riparius Proteome reflecting Ecdysterone Inducible Genes and Mitogenome exposure to Bisphenol-A

  • Kwak Inn-Sil
    • 환경생물
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    • 제23권3호
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    • pp.275-280
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    • 2005
  • Development of the fourth-instar larvae of Chironomus riparius has a sensitive to ecdysteroid hormones. The 2D/E gel analysis for polypeptide expression reflecting early-ecdysterone inducible gene has conducted the emerged female from larval phase exposure to bisphenol A (BPA). In the 2D/E gel 1108 protein spots were identified. The visualized protein spots allowed extraction of 17 protein spots differed more than 3 fold in BPA treated animals, which was approximately $1.6\%$ of the total protein spots. However, polypeptide expression reflecting early-ecdysterone inducible gene didn't change after treatments. In addition, detection for the damages or changes in mitogenome level was observed. The conserved cytochrome oxidase I in DNA level affected exposure to BPA $(1{\mu}gL^{-1})$ in this preliminary study.

DBMS 기반 식물 돌연변이 단백질체 분석을 위한 시스템 설계 및 구현 (Design and Implementation of 08MS-based Plant Mutant Proteome Analysis System)

  • 허정호;박춘구;박윤주;최지인;정동수;남홍길
    • 한국정보과학회:학술대회논문집
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    • 한국정보과학회 2002년도 가을 학술발표논문집 Vol.29 No.2 (1)
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    • pp.283-285
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    • 2002
  • 생물학의 주된 목적이 세포 안에서의 유전자의 기능을 알아내는 것이므로 유전자의 실제 기능을 담당하는 단백질에 대한 연구는 필연적인 것이다. 근래에 이르러 2DE등의 실험방법 개선 둥으로 대량의 단백질에 대한 연구가 실현화됨에 따라, 프로트오믹스(proteomics)의 연구가 활성화되었으며, 본 실험팀 역시 식물 애기장대의 돌연변이들을 이용한 프로티오믹스 연구를 진행중이다. 프로티오믹스 연구는 실험 특성상 대량의 단백질 정보들을 얻게 되므로 데이터의 수작업 분석이 불가능하다. 그리하여 우리는 식물 애기장대(arabidopsis)의 특성과 2DE 실험에서 파생되는 여러 데이터들을 반영하여 정보를 효율적으로 관리할 수 있는 데이터 베이스를 설계 구축하였으며, 나아가 각 표현형을 대표할 수 있는 표지 단백질을 선별해내는 분석모듈을 구현하였다.

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Single-Cell Sequencing in Cancer: Recent Applications to Immunogenomics and Multi-omics Tools

  • Sierant, Michael C.;Choi, Jungmin
    • Genomics & Informatics
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    • 제16권4호
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    • pp.17.1-17.6
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    • 2018
  • Tumor heterogeneity, the cellular mosaic of multiple lineages arising from the process of clonal evolution, has continued to thwart multi-omics analyses using traditional bulk sequencing methods. The application of single-cell sequencing, in concert with existing genomics methods, has enabled high-resolution interrogation of the genome, transcriptome, epigenome, and proteome. Applied to cancers, these single-cell multi-omics methods bypass previous limitations on data resolution and have enabled a more nuanced understanding of the evolutionary dynamics of tumor progression, immune evasion, metastasis, and treatment resistance. This review details the growing number of novel single-cell multi-omics methods applied to tumors and further discusses recent discoveries emerging from these approaches, especially in regard to immunotherapy.